TLS Online TPP Program

#Question id: 31381


Patch clamping can be used to measure the conductance properties of individual ion channels. How can patch clamping be used to determine whether the gene coding for a putative K⁺ channel actually codes for a K⁺ or a Na⁺ channel?

#Unit 13. Methods in Biology
  1. By measuring the ion selectivity of the channel using solutions containing only K⁺ or Na⁺ 
  2. By observing the shape of the channel under a microscope
  3. By measuring the ATP consumption of the cell expressing the channel
  4. By staining the channel with a fluorescent dye specific for K⁺ channels